Forty scholar council of Imam Abu Hanifah rahimahullah
The council of Imam Abu Hanifah who documented the books (i.e. legal issues) were forty personalities. The leading ten among them were: Abu Yusuf, Zufar ibn Hudhayl, Dawud al-Ta’i, Asad ibn ‘Amr, Yusuf ibn Khalid al-Samti, and Yahya ibn Zakariyya ibn Abi Za’idah. He (Yahya ibn Zakariyya) was their scribe for thirty years.